HBASE-29571 Fix Javadoc typo: 'repoen' should be 'reopen' (#7273)

Signed-off-by: Dávid Paksy <[email protected]>

Author: wangxiangdong123

hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/MergeTableRegionsProcedure.java

@@ -672,8 +672,8 @@ private void cleanupMergedRegion(final MasterProcedureEnv env) throws IOExceptio
    **/
   private void rollbackCloseRegionsForMerge(MasterProcedureEnv env) throws IOException {
     // At this point we should check if region was actually closed. If it was not closed then we
-    // don't need to repoen the region and we can just change the regionNode state to OPEN.
-    // if it is alredy closed then we need to do a reopen of region
+    // don't need to reopen the region and we can just change the regionNode state to OPEN.
+    // if it is already closed then we need to do a reopen of region
     List<RegionInfo> toAssign = new ArrayList<>();
     for (RegionInfo rinfo : regionsToMerge) {
       RegionStateNode regionStateNode =